MiscVocabTypes of Reactio ns Reacti on Rates Extra 100 T/F During a chemical reaction, chemical bonds break and new bonds form. 100 True 200 Egg frying, chemical of physical? 200 Chemical 300 The process that changes matter into one or more new substances. 300 Chemical Change 400 Water vapor in the air turns to liquid water in the form of rain. Chemical or Physical? 400 Physical 500 Balance the following reaction H2O + O2 -> H2O 500 2 H2 + O2 -> 2 H2O 100 Substances listed on the left side of a chemical equation. 100 Reactants 200 A shorter, easier way to show chemical reactions using symbols instead of words. 200 Chemical Equation 300 A chemical reaction that absorbs energy in the form of heat. 300 Endothermic 400 Amount of energy needed to start a chemical reaction. 400 Activation energy 500 DAILY DOUBLE! Chemicals that act as biological catalysts by speeding up reactions in living things. 500 Enzymes 100 2 or more substances combine to form a more complex substance. 100 Synthesis 200 Type of reaction where elements in 2 compounds trade places with other. 200 Double replacement 300 Water is broken down into hydrogen and oxygen. 300 decomposition 400 2 KBr + Cl2 -> 2 KCl + Br2 400 Single Replacement 500 2 CO + O2 -> 2 CO2 500 Synthesis 100 Increasing the surface area. 100 Increase 200 Lowering the temperature 200 Decrease 300 Increasing the concentration 300 Increase 400 Adding a catalyst. 400 Increase 500 Adding an inhibitor 500 Decrease 100 Define matter. 100 Anything that has mass and volume (takes up space) 200 Calculate the density of a sample with a mass of 30g and a volume of 10m L. Will this sample sink or float in water? 200 3 g/mL Sink 300 Who was the author of the 1 st periodic table? 300 Mendeleev 400 What is the difference between subjective and objective writing. Give a time when you would use each. 400 Subjective-based on thoughts/opinions (movie review) Objective- based on facts (newspaper article) 500 List the 5 problem solving strategies Retrace steps 2. Make a model 3. Trial and error/Process of elimination 4. Find a pattern 5. Break into simpler steps Final Jeopardy Vocabulary Final jeopardy What is the shorthand notation for a compound or a diatomic element using symbols and numbers called? Final jeopardy Chemical Formula